With Mark Del Vecchio in 1981 he founded Garth Clark Gallery in New York, Los Angeles and briefly London and Kansas City. He founded the Ceramic Arts Foundation in 1979 and was its Director until 2005. An active speaker, Clark has spoken on five continents in thirty countries at over 100 major venues from the Metropolitan Museum of Art, New York and the Victoria and Albert Museum, London to the Sorbonne University, Paris. Next year he will be in Europe on a lecture tour taking him to Ireland, Britain, Norway, Sweden, Germany, Netherlands, France and Italy as CFile’s ambassador. He has just completed two books, Mind Mud: The Conceptual Ceramics of Ai Weiwei and Lucio Fontana Ceramics.